II.2.5.5
Evacuating and filling the circuit
The use and maintenance manual of the TCEE evaporator units gives
the necessary instructions for properly filling and evacuating the
refrigeration circuit.
For the seal and proper closing of the cocks, the closing torque values
may be useful:
Cock
Torque
10 Nm
ENVIRONMENTAL SAFEGUARD!
Refrigerant gas may not be discharged into the
atmosphere. It must be recovered using type-
approved equipment and adequate gas canisters. It
must then be delivered to an authorized collection
centre
II.2.6
ELECTRICAL CONNECTIONS
DANGER!
Electrical connection of the unit must be carried out
by qualified personnel in compliance with the
regulations in effect in the country where the unit is
installed. RHOSS shall not be held liable for
damage to persons or property caused by incorrect
electrical connection.
The path of the electrical cables for the connection
of the panel must not touch any hot parts of the
machine.
IMPORTANT!
For electrical connections of the unit and the
accessories, follow the wiring diagrams which are
supplied with them.
Electrical connections must be made in compliance with established
standards and following any wiring diagrams supplied with the unit.
The electrical power, single phase or three phase depending on the
model, must be taken to the main isolator switch.
The electricity supply cable must be flexible with a sheath in neoprene
no lighter than HO5RN-F. The earth conductor must be longer than the
other conductors so that it is the last to come under strain in the event
that the cable clamping device becomes slack.
Check that the fan rotates in the proper direction. For this purpose refer
to the adhesive arrow on the equipment.
Check the balance of the fan, looking to see if the conveyor panel
vibrates abnormally. In the case of malfunction, stop operation
immediately and if necessary replace the fan.
DANGER!
Always install a general automatic switch in a
protected area near the appliance with a
characteristic delayed curve, with sufficient
capacity and breaking power. There should be a
minimum distance of 3 mm between the contacts.
Earth connection is compulsory by law to ensure
user safety while the machine is in use.
II.3
INSTRUCTIONS FOR MAINTENANCE
DANGER!
Maintenance work and inspections must only be
carried out by qualified technicians authorised to
work on air-conditioning and refrigeration systems.
Use suitable personal protection (gloves, eye
protection etc).
DANGER!
Do not insert pointed objects through the fan grills.
1/2
5/8
¾
10 Nm
35 Nm
7/8
35 Nm
II.3.1
SCHEDULED MAINTENANCE
Proper operation, reliability and safety of the machine depend largely on
careful and timely maintenance. The information used in designing the
CCAM units allow for substantial reduction of maintenance operations.
Maintenance of the unit must be considered as the best way to:
• prevent accidents from occurring to those working on the equipment;
• reduce the possibility of damage to various property as a result of
the use of the unit;
• keep the system and components operating efficiently;
• prevent and repair the leaks of refrigerant gas and lubricating oil;
• reduce energy consumption of the machine.
o Checking for refrigerant leaks
• With the unit off, use an appropriate leak detector to check the
refrigeration circuit, ensuring that the leaks are no greater than 3g/year.
• remove any foreign bodies from the finned surface which may
obstruct air flow;
• clean off the dust deposit, if possible by vacuuming it;
• wash and brush, gently, with water;
• air dry.
30
SECTION II: INSTALLATION AND MAINTENANCE
DANGER!
Always disconnect the unit from the mains power
supply using the isolator switch before carrying out
maintenance work or checks. Make sure that no one
accidentally supplies power to the machine – lock
the main switch in the OFF position.
DANGER!
The delivery pipe may have a temperature of more
than 100°C. Use extreme caution.